On most grading scales, yes:
100% - 98% A+
97% - 93% A
92% - 90% A-
89% - 88% B+
87% - 83% B
82% - 80% B-
etc.
90 percent of what?
90%
90 - 20% = 72
45 minus 9 percent is equal to 40.95.
I presume the question is "what is 10 percent of minus 100"10% x -100 = -10
90 minus 30 percent - and therefore 30 percent OFF the number, is equal to 90 x (1 - (30 / 100)) = 90 x (1 - 0.3) = 90 x 0.7 = 63. 30 percent OF 90 is equal to 90 x (30 / 100) = 90 x 0.3 = 27
90 percent of what?
90%
90 - 20% = 72
45
90 - (90 x 11%) = 90 - 9.90 = 80.10
.90
140
It is: 0.9 = 90%
45 minus 9 percent is equal to 40.95.
I presume the question is "what is 10 percent of minus 100"10% x -100 = -10
0.9 equal in percent to decimal = 90%